Automatic air-controlling device for gas-engines.



W.- H. GUTHRIE.

AUTOMATIC Am CONTROLLING DEVICE FOR GAS ENGINESL APPLICATION FILED JAN- 8. l9l7.

2 SHEETS-SHEET I.

amwmtoz v I o anew/mugs Patented Sept. 24,1918.

W. H. GUTHRIE.

AUTOMATIC AIR CONTROLLING DEVICE FOR GAS ENGINES- APPEICATION FILED JAN-8. 1917.-

1 ,279,685 Patented Sept. 243918.

2 SHEETS-SHEET 2.

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r WADE H. GUTHRIE, or CHARLESTON, WESTJVIRG'IMA;

AUTOMATIC AIR-CONTROLLING DEVICE FOR GAS-ENGINES.

To all whom it may concern: Be it. known that I, WADE H. \GUTHIRIE, a

oitizenof the United States, residing at Charleston, in the county of Kanawha and State ;of West Virginia, have invented certain new and useful Improvements in Auto'- matic Air-Controlling Devices for Gas-Engines; and I do declare the following to be a iiulhclsanand exact description of the .in-

izention, such as will enable others skilled in the art to which it appentains -to make and use-the.-same.- 1 U This invention relates to new and useful improvements in automatic air controlling devicesjgfor gasolene or explosive engines,

and moree particularly to one inwhichthe speed :sUf the engine is automatically controlled by the opening andclosing of a valve arranged-to admit-fair or steam from the top of an automobile radiator or other point to theintake manifold, thereby increasing the power and reducing the expense of operating apmotor; V f z v :The object of thepresent invention is to prouidea; device of this character-which is simple and inexpensive in construction and which may be quickly ilandgeasily applied to i automobileaorother engines.

.:.Agfurthe'r object of myinwention is to provide a compact device which "can be attach ed to. the topoftheengine body, and

when so attached disposes-the device over the fan shaft. ,7

1 these and numerous other objects in :view, the inventionconsists of the novel featurcs 10f construction, combination and armanagement of parts which wilLbehereinafter inferred to, and; more particularly pointed out theispecifioation and claims. a 1 the accompanying .dnawings: Figure 1 isa;side elevation, partly in section-.;of agportion-of an automobile engine,

' a:showin theinven ionappl h a ;is adetail side elevation of the driven :shaft and valve construction, show.-

i :tio'n shown iii-Fig.2 iWit-hthe valve-in sec- 3 tion, and in normal closed position; 60'

cl Fig; 4 is a view similar to ing jthevalve inoperation. v I

r In ;the,.accompany1ng drawmgs '1 denotes ri showthe -automobile engine, 5 2 the radiator and. ,3

the usual cooling fan shaft which is driven Specification of Letters Patent.

steamfrom the radiator.

by a' belt or other' meansoflointhd engine shaft, and 4 denotes the intake-.manifoldof the engine. i

atented Sept. '24, 1918;

, Application-filed January 8,1917. Seria1 No.14 1,215. r

v In applying my invention ;to ,automd connected to its inlet'endajpipc Zwhich Fig. 1 is shown as extendingintojtheupper portion of the automohileiradiator 2 ,and having a downturned open ,endz8 to receive It will :be under? stood, however, that said pipe may 132131.130

another source of steam supply .-or take-in air heated or otherwise. The'outlet end of the valve casin-gj is ,connectedxby 1a pipe 9 that is tapped into the intakermanifold at the iu-shaped bracketiand projectsbeyond {the cross :piece ofzthe same. This'attaching member .is disposed in the samerplane :asgthe rest ofthe iii-shaped. bracket, and when it is 'taching member .11 is'formed integral with V attached atits fireeendito the'ztopofthe -engine body it disposes the device overt he fan shaft of theengine. EOn-the outer end of the spaced arm 12: is formed a bearing Main which is j-ournaled ;a shaft 15-:whichis disposedsubstantially parallelr.-with the ".zfian shaft 7 Thisshaft 1.5isiprovided with a pulley 16 onone end so uarraingedthat it is disposed directly above the exposed 2p ortion of thefan shaft 3 andithese two parts are- -,connected b.y a-sbelt L7 whereby when the fan 7 shaft is driven the shaft 15 taneously therewith V Secured to the end ofthe-shaft 15 on :the

opposite side of the bearing 14' from the pulwill :move' simul .ley, is a centrifugalogovernor which com: 1

prises-a collar 1-8 fixed to the shaft, a mov able. mile-r19- on said shaft,- govemioriarms pivotailly connected withthe movah lecol lar .19 and provided with weights 20 'atftheir outer ends, said arms heingi connected with projecting portions on the fixed collar by meansof links 21, whereby when the governor is operated and the weights swing outwardly, the arms will fulcrum on the links and the movable collar 19 will be moved longitudinally with respect to the shaft.

The valve casing 5 is secured to the spaced arm 13 of the bracket 11 as clearly shown in Figs. 1 and 3 of the drawings and this valve casing is provided with a pair of communicating chambers, the smaller chamber 22 being comiected with the inlet pipe, and the larger chamber 23 being connected with the outlet. The inlet and outlet pipes are connected with the casing at right angles to each other and the valve proper when in normal position closesthe opening between the two chambers. The valve is provided with a sliding stem 6 which projects through one side of the casing and is disposed in longitudinal alinement with the shaft 15 journaled 1n the opposite spaced arm 12.

The valve stem 6 is provided with a stop 2 1 adjacent its outer end which comprises a washer plate held in position by a nut engaging the outer end of the stem and positioned around the stem between the stop 24: and the casing is a coiled spring 25 which is so arranged as to exert a constant outward tension on the stem and hold the valve within the smaller chamber in the casing and hence in closed position. The outer end of the stem 6 has positioned thereon a head 26 which is disposed in engagement with the movable collar 19 which forms part of the centrifugal governor.

In operation, when the speed of the engine reaches a predetermined point, the weights 20 will fly outwardly and the movable collar 19 will be moved forwardly, pressing the valve stem against the tension of the coiled spring 25 and moving the valve into the larger outlet chamber 23 in the casing, thereby opening communication between said chambers and hence holding the valve in open position.

Owing to the fact that the valve stem is pressed against the movable collar by the tension of the coiled spring 25, the centrifugal force necessary to operate the device can be regulated by adjusting the stop 24 on the stem, thereby regulating the tension of the spring. Bythis adjustment the speed at which the governor must revolve to actuate the valve can be controlled. As the speed of the engine decreases the weights 20 will return to their normal positions and the movable collar will move rearwardly. The coiled spring will force the stem to follow the collar, and the valve will once more return to normal closed position. It

I will thus be seen that the device is entirely automatic in operation and while I have shown it in the drawings as controlling the flow of steamfrom the radiator to the intake manifold, it will be understood that it may be used for supplying steam or air from any source. This automatic controlling device may be applied to any type of auto mobile engine, as it utilizes the small space on the fan shaft, that is the only exposed movable part of the modern automobile engine, to operate it. By so connecting the device with the engine it does not require any change in the castings or other parts of the engine to place the device in operative position.

Various changes in the form, proportion and minor details of construction may be resorted to without departin from the principle or sacrificing any a vantages of the invention.

I claim: 1

1. An attachment for an automobile one gine comprising a flat U -shaped bracket having a right angular projection formed at the end of one of its arms provided with a tubular bearing, a right angular attaching member formed integral with the other arm of the U-shaped bracket and projecting beyond the cross piece of the same, said attaching member being disposed in the same plane as the U-shaped bracket, the free end of said attaching member-adapted to be attached to the top of the engine body thereby disposing the 'deviceabove the fan 1 shaft of the engine, a valve casing arranged on the last mentioned arm of the U-shaped bracket provided with an inlet in its side and an outlet at one end, a valve in said casing having a stem projecting through the opposite end of the same in axial alinement with said tubular bearing, a shaft in said tubular bearing provided with a pulley at one end adapted to be driven from'the fan shaft of the engine, and a centrifugal govyond the cross piece of the same, said attaching member being disposed in the same plane as the U-shaped bracket,-the free end of said attaching member adapted to be attached to the top of "the engine body thereby disposing the device above the fan shaft of the engine, a valve casing arranged on the last mentioned arm; of the U-shaped bracket provided with an inlet in its side and an outlet at one end, a valve in said casing having a stem projecting through the opposite end of the same in axial alinement with said tubular bearing, a stop on said stem, a shaft in said tubularbearing,

provided with a pulley at one end adapted to be driven from the fan shaft of the engine, a centrifugal governor on the other end of said shaft disposed between the arms of said bracket, said governor including a sleeve slidable on said shaft and adapted to coact with the end of said valve stem, a

I spring disposed between the valve casing and 7 said stop on the valve-stem, said stop being adjustable whereby to permit the tension on the spring to be varied thereby allowing the t Copies of this patent may be obtained for witnesses.

WADE H. GUTHRIE.

Witnesses: V I V D, EDMOND GUTHRm, G. NEBBERGALL;

five cents each, by addressing the Commissioner of I'stents, Washington, D. (2.? 

